Kelly Osbourne Undergoing More Tests

Doctors are trying to figure out what’s going on with Kelly Osbourne’s health. Osbourne, 28, is undergoing more tests after being hospitalized after fainting on the set of E!’s "Fashion Police,” reports People.com.

Osbourne tweeted a photo of her arm attached to an IV, and wrote, "Thank U all 4 UR beautiful well wishes yes I did have a seizure they are just trying to figure out why?"

Her rep said she’s undergoing more testing but is awake and alert, and in stable condition.

As previously reported, Osbourne, the daughter of rocker Ozzy Osbourne and talk show host Sharon Osbourne, was taken to a hospital after the incident Thursday. She reportedly said, "I don’t feel good," then fell out of a chair and started shaking.